package com.example.demo.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

//告诉Spring容器，这个类是一个配置类
@Configuration
//启用Swagger2功能
@EnableSwagger2
public class SwaggerConfig implements WebMvcConfigurer {
    //    重写父类方法
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/**").addResourceLocations(
                "classpath:/static/");
        registry.addResourceHandler("swagger-ui.html").addResourceLocations(
                "classpath:/META-INF/resources/");
        registry.addResourceHandler("/webjars/**").addResourceLocations(
                "classpath:/META-INF/resources/webjars/");
        WebMvcConfigurer.super.addResourceHandlers(registry);
    }

    //  配置Swagger2相关的bean
    @Bean
    public Docket createRestApi(){
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .select()
                .apis(RequestHandlerSelectors.basePackage("com"))  //com包下所有API都交给Swagger2管理
                .paths(PathSelectors.any()).build();
    }

    //  此处主要是API文档页面显示信息
    private ApiInfo apiInfo(){
        return new ApiInfoBuilder()
                .title("演示项目API") //标题
                .description("学习Swagger2的演示项目") //描述
                .version("1.0") //版本
                .build();
    }
}
